Last week I’ve found FoxTab a Firefox extension that brings 3D effects into your web browser.
It allows you to switch through opened tabs with a combination of keys (like you usually do in your operating system to switch through opened programs).
I’ve been using for a couple of days now and it’s been working great. It is really useful when you have 20 tabs opened inside a window and you want so select a specific one. It also has a lot of options and customizable environments which is a plus.